I think there's a problem with your skin object.  I can see here
http://wiki.bonita.objectweb.org/xwiki/bin/view/XWiki/MySkin?xpage=xml
that you are overriding the login template login.vm as follows:
<property>
<login.vm>XWiki.MySkin</login.vm>
</property>
In other words, your effective login template just contains the text
"XWiki.MySkin".
One solution would be to access the database directly and clear out
that property.
Cheers,
Robin
On 27/11/06, Xavier MOGHRABI <xavier.moghrabi(a)objectweb.org> wrote:
  Dear XWiki Users,
 I've a critical problem with a wiki inside the ObjectWeb XWiki farm.
 In fact, we cannot acess any more to the login page. Thus it is impossible to
 us to modify the wiki.
 The affected wiki is :
 
http://wiki.bonita.objectweb.org/xwiki/bin/login/XWiki/XWikiLogin
 When I look at the log of Tomcat. I can see that the URL is transform into :
 17:31:18,260  WARN TP-Processor30
 
http://wiki.bonita.objectweb.org/xwiki/bin/loginerror/XWiki/XWikiLogin
 MonitorData:log:188 - MONITOR : 2ms
 17:31:18,295  WARN TP-Processor30
 
http://wiki.bonita.objectweb.org/xwiki/bin/loginerror/XWiki/XWikiLogin
 MonitorData:log:188 - MONITOR XWiki.XWikiLogin: 35ms
 Does anyone know what happened on my Wiki ?
 Regards
 --
 Xavier MOGHRABI - Consortium ObjectWeb
 Jabber: moghrabi(a)jabber.objectweb.org
 Phone: +33 4 76 61 52 35
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